Kernel core dumps must be disabled unless needed.

From Solaris 11 X86 Security Technical Implementation Guide

Associated with: CCI-000366

SV-60885r1_rule Kernel core dumps must be disabled unless needed.

Vulnerability discussion

Kernel core dumps may contain the full contents of system memory at the time of the crash. Kernel core dumps may consume a considerable amount of disk space and may result in denial of service by exhausting the available space on the target file system. The kernel core dump process may increase the amount of time a system is unavailable due to a crash. Kernel core dumps can be useful for kernel debugging.

Check content

The root role is required. This check applies to the global zone only. Determine the zone that you are currently securing. # zonename If the command output is "global", this check applies. Verify savecore is not used. # dumpadm | grep 'Savecore enabled' If the value is yes, this is a finding.

Fix text

The root role is required. This action applies to the global zone only. Determine the zone that you are currently securing. # zonename If the command output is "global", this action applies. Disable savecore. # dumpadm -n

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